Anglo-Saxons and Vikings made their own clothes out of natural materials. The styles were pretty much the same. The men wore long-sleeved tunics made of wool or linen. A gilet ( mine are 100%cotton instead of wool) would be worn over the tunic for warmth. Their checked trousers were woollen ( mine are polyester) and, held up by a leather belt from which they could also hang tools such as knives and pouches. I have added a faux fur collar as they would have draped animal skins across their shoulders.